1 /* This file is part of Metaproxy.
2 Copyright (C) Index Data
4 Metaproxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 // make std::min actually work on Windows
23 #include <metaproxy/package.hpp>
24 #include <metaproxy/util.hpp>
25 #include "gduutil.hpp"
26 #include "sru_util.hpp"
27 #include "filter_sru_to_z3950.hpp"
30 #include <yaz/pquery.h>
31 #include <yaz/oid_db.h>
33 #include <yaz/otherinfo.h>
34 #include <yaz/facet.h>
36 #include <boost/thread/mutex.hpp>
37 #include <boost/thread/condition.hpp>
44 namespace mp = metaproxy_1;
45 namespace mp_util = metaproxy_1::util;
46 namespace yf = mp::filter;
48 namespace metaproxy_1 {
50 class SRUtoZ3950::Frontend : boost::noncopyable {
57 class SRUtoZ3950::Impl {
59 void configure(const xmlNode *xmlnode);
60 void process(metaproxy_1::Package &package);
62 FrontendPtr get_frontend(mp::Package &package);
63 void release_frontend(mp::Package &package);
64 std::map<std::string, const xmlNode *> m_database_explain;
65 std::string default_stylesheet;
67 typedef std::map<std::string, int> ActiveUrlMap;
69 boost::mutex m_mutex_session;
70 boost::condition m_cond_session_ready;
71 std::map<mp::Session, FrontendPtr> m_clients;
73 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
74 int z3950_build_query(
75 mp::odr &odr_en, Z_Query *z_query,
76 const Z_SRW_searchRetrieveRequest *req
79 bool z3950_init_request(
83 Z_SRW_PDU *sru_pdu_res,
84 const Z_SRW_PDU *sru_pdu_req
87 bool z3950_close_request(mp::Package &package) const;
89 bool z3950_search_request(
91 mp::Package &z3950_package,
93 Z_SRW_PDU *sru_pdu_res,
94 Z_SRW_searchRetrieveRequest const *sr_req,
99 bool z3950_present_request(
100 mp::Package &package,
102 Z_SRW_PDU *sru_pdu_res,
103 Z_SRW_searchRetrieveRequest const *sr_req
106 bool z3950_to_srw_diagnostics_ok(
108 Z_SRW_searchRetrieveResponse *srw_res,
112 int z3950_to_srw_diag(
114 Z_SRW_searchRetrieveResponse *srw_res,
115 Z_DefaultDiagFormat *ddf
122 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
126 yf::SRUtoZ3950::~SRUtoZ3950()
127 { // must have a destructor because of boost::scoped_ptr
130 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
133 m_p->configure(xmlnode);
136 void yf::SRUtoZ3950::process(mp::Package &package) const
138 m_p->process(package);
141 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
143 const xmlNode * dbnode;
145 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
147 if (dbnode->type != XML_ELEMENT_NODE)
150 if (!strcmp((const char *) dbnode->name, "database"))
152 std::string database;
154 for (struct _xmlAttr *attr = dbnode->properties;
155 attr; attr = attr->next)
157 mp::xml::check_attribute(attr, "", "name");
158 database = mp::xml::get_text(attr);
160 const xmlNode *explainnode;
161 for (explainnode = dbnode->children;
162 explainnode; explainnode = explainnode->next)
164 if (explainnode->type == XML_ELEMENT_NODE)
166 m_database_explain.insert(
167 std::make_pair(database, explainnode));
173 else if (!strcmp((const char *) dbnode->name, "stylesheet"))
175 default_stylesheet = mp::xml::get_text(dbnode);
179 throw mp::filter::FilterException
181 + std::string((const char *) dbnode->name)
188 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
192 mp::odr odr_de(ODR_DECODE);
193 Z_SRW_PDU *sru_pdu_req = 0;
195 mp::odr odr_en(ODR_ENCODE);
197 // determine database with the HTTP header information only
198 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
199 std::map<std::string, const xmlNode *>::iterator idbexp;
200 idbexp = m_database_explain.find(sruinfo.database);
202 // assign explain config XML DOM node if database is known
203 const xmlNode *explainnode = 0;
204 if (idbexp != m_database_explain.end())
206 explainnode = idbexp->second;
209 // decode SRU request
212 const char *stylesheet = 0;
213 Z_SRW_diagnostic *diagnostic = 0;
214 int num_diagnostic = 0;
216 // filter acts as sink for non-valid SRU requests
217 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
219 &num_diagnostic, &soap,
224 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en,
225 Z_SRW_explain_response);
226 sru_pdu_res->u.explain_response->diagnostics = diagnostic;
227 sru_pdu_res->u.explain_response->num_diagnostics = num_diagnostic;
228 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
229 sruinfo, explainnode);
230 mp_util::build_sru_response(package, odr_en, soap,
231 sru_pdu_res, charset, stylesheet);
235 metaproxy_1::odr odr;
237 odr.create_HTTP_Response(package.session(),
238 zgdu_req->u.HTTP_Request, 400);
239 package.response() = zgdu_res;
244 bool enable_package_log = false;
247 Z_SRW_extra_arg *arg;
249 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
250 if (!strcmp(arg->name, "x-target"))
252 zurl = std::string(arg->value);
254 else if (!strcmp(arg->name, "x-max-sockets"))
256 package.origin().set_max_sockets(atoi(arg->value));
258 else if (!strcmp(arg->name, "x-session-id"))
260 package.origin().set_custom_session(arg->value);
262 else if (!strcmp(arg->name, "x-log-enable"))
264 if (*arg->value == '1')
266 enable_package_log = true;
267 package.log_enable();
270 else if (!strncmp(arg->name, "x-client-", 9) && arg->value)
274 dbargs += mp_util::uri_encode(arg->name + 9);
276 dbargs += mp_util::uri_encode(arg->value);
281 Package z3950_package(package.session(), package.origin());
282 z3950_package.copy_filter(package);
284 Z_SRW_PDU *sru_pdu_res = 0;
285 if (sru_pdu_req->which == Z_SRW_explain_request)
287 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
288 stylesheet = er_req->stylesheet;
289 sru_pdu_res = yaz_srw_get_pdu_e(odr_en, Z_SRW_explain_response,
291 sru_pdu_res->u.explain_response->diagnostics = diagnostic;
292 sru_pdu_res->u.explain_response->num_diagnostics = num_diagnostic;
293 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
294 sruinfo, explainnode, er_req);
296 else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request)
298 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
299 stylesheet = sr_req->stylesheet;
300 sru_pdu_res = yaz_srw_get_pdu_e(odr_en, Z_SRW_searchRetrieve_response,
302 sru_pdu_res->u.response->diagnostics = diagnostic;
303 sru_pdu_res->u.response->num_diagnostics = num_diagnostic;
305 // checking that we have a query
306 ok = mp_util::check_sru_query_exists(package, odr_en,
307 sru_pdu_res, sr_req);
309 if (ok && z3950_init_request(package, odr_en,
310 zurl, sru_pdu_res, sru_pdu_req))
312 ok = z3950_search_request(package, z3950_package, odr_en,
313 sru_pdu_res, sr_req, zurl, dbargs);
316 && sru_pdu_res->u.response->numberOfRecords
317 && *(sru_pdu_res->u.response->numberOfRecords))
319 ok = z3950_present_request(package, odr_en,
322 z3950_close_request(package);
325 else if (sru_pdu_req->which == Z_SRW_scan_request)
327 stylesheet = sru_pdu_req->u.scan_request->stylesheet;
328 sru_pdu_res = yaz_srw_get_pdu_e(odr_en, Z_SRW_scan_response,
330 sru_pdu_res->u.scan_response->diagnostics = diagnostic;
331 sru_pdu_res->u.scan_response->num_diagnostics = num_diagnostic;
333 // we do not do scan at the moment, therefore issuing a diagnostic
334 yaz_add_srw_diagnostic(odr_en,
335 &sru_pdu_res->u.scan_response->diagnostics,
336 &sru_pdu_res->u.scan_response->num_diagnostics,
337 YAZ_SRW_UNSUPP_OPERATION, "scan");
342 yaz_srw_get_pdu_e(odr_en, Z_SRW_explain_response, sru_pdu_req);
343 sru_pdu_res->u.explain_response->diagnostics = diagnostic;
344 sru_pdu_res->u.explain_response->num_diagnostics = num_diagnostic;
345 yaz_add_srw_diagnostic(odr_en, &diagnostic, &num_diagnostic,
346 YAZ_SRW_UNSUPP_OPERATION, "unknown");
348 if (enable_package_log)
351 package.log_reset(l);
356 wrbuf_puts(w, "<log>\n");
357 wrbuf_xmlputs(w, l.c_str());
358 wrbuf_puts(w, "</log>");
360 sru_pdu_res->extraResponseData_len = w.len();
361 sru_pdu_res->extraResponseData_buf =
362 odr_strdup(odr_en, wrbuf_cstr(w));
365 if (!stylesheet && default_stylesheet.length())
366 stylesheet = default_stylesheet.c_str();
368 // build and send SRU response
369 mp_util::build_sru_response(package, odr_en, soap,
370 sru_pdu_res, charset, stylesheet);
374 yf::SRUtoZ3950::Frontend::Frontend() : m_in_use(true)
378 yf::SRUtoZ3950::Frontend::~Frontend()
383 yf::SRUtoZ3950::FrontendPtr yf::SRUtoZ3950::Impl::get_frontend(
384 mp::Package &package)
386 boost::mutex::scoped_lock lock(m_mutex_session);
388 std::map<mp::Session,yf::SRUtoZ3950::FrontendPtr>::iterator it;
392 it = m_clients.find(package.session());
393 if (it == m_clients.end())
396 if (!it->second->m_in_use)
398 it->second->m_in_use = true;
401 m_cond_session_ready.wait(lock);
403 FrontendPtr f(new Frontend);
404 m_clients[package.session()] = f;
409 void yf::SRUtoZ3950::Impl::release_frontend(mp::Package &package)
411 boost::mutex::scoped_lock lock(m_mutex_session);
412 std::map<mp::Session,FrontendPtr>::iterator it;
414 it = m_clients.find(package.session());
415 if (it != m_clients.end())
417 if (package.session().is_closed())
423 it->second->m_in_use = false;
425 m_cond_session_ready.notify_all();
429 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
431 FrontendPtr f = get_frontend(package);
433 Z_GDU *zgdu_req = package.request().get();
435 if (zgdu_req && zgdu_req->which == Z_GDU_HTTP_Request)
437 sru(package, zgdu_req);
443 release_frontend(package);
447 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
450 Z_SRW_PDU *sru_pdu_res,
451 const Z_SRW_PDU *sru_pdu_req) const
453 // prepare Z3950 package
454 Package z3950_package(package.session(), package.origin());
455 z3950_package.copy_filter(package);
457 // set initRequest APDU
458 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
459 Z_InitRequest *init_req = apdu->u.initRequest;
461 Z_IdAuthentication *auth = NULL;
462 if (sru_pdu_req->username && !sru_pdu_req->password)
464 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
465 auth->which = Z_IdAuthentication_open;
466 auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
468 else if (sru_pdu_req->username && sru_pdu_req->password)
470 auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
471 auth->which = Z_IdAuthentication_idPass;
472 auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
473 auth->u.idPass->groupId = NULL;
474 auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
475 auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
478 init_req->idAuthentication = auth;
480 *init_req->preferredMessageSize = 10*1024*1024;
481 *init_req->maximumRecordSize = 10*1024*1024;
483 ODR_MASK_SET(init_req->options, Z_Options_search);
484 ODR_MASK_SET(init_req->options, Z_Options_present);
485 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
486 ODR_MASK_SET(init_req->options, Z_Options_scan);
488 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
489 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
490 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
495 std::list<std::string> dblist;
496 mp_util::split_zurl(zurl, host, dblist);
497 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
500 Z_GDU *zgdu_req = package.request().get();
501 if (zgdu_req->which == Z_GDU_HTTP_Request)
503 Z_HTTP_Request *hreq = zgdu_req->u.HTTP_Request;
504 const char *peer_name =
505 z_HTTP_header_lookup(hreq->headers, "X-Forwarded-For");
508 yaz_oi_set_string_oid(&init_req->otherInfo, odr_en,
509 yaz_oid_userinfo_client_ip, 1, peer_name);
513 z3950_package.request() = apdu;
515 // send Z3950 package
516 z3950_package.move();
518 // check successful initResponse
519 Z_GDU *z3950_gdu = z3950_package.response().get();
521 int error = YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE;
522 const char *addinfo = 0;
523 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
524 && z3950_gdu->u.z3950->which == Z_APDU_initResponse)
526 Z_InitResponse *initrs = z3950_gdu->u.z3950->u.initResponse;
532 Z_DefaultDiagFormat *df = yaz_decode_init_diag(no, initrs);
536 yaz_add_srw_diagnostic(odr_en,
537 &(sru_pdu_res->u.response->diagnostics),
538 &(sru_pdu_res->u.response->num_diagnostics),
539 yaz_diag_bib1_to_srw(*df->condition),
544 return false; // got least one diagnostic from init
546 // we just have result=false.
547 error = YAZ_SRW_AUTHENTICATION_ERROR;
550 addinfo = "sru_z3950: expected initResponse";
551 yaz_add_srw_diagnostic(odr_en,
552 &(sru_pdu_res->u.response->diagnostics),
553 &(sru_pdu_res->u.response->num_diagnostics),
558 bool yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
560 Package z3950_package(package.session(), package.origin());
561 z3950_package.copy_filter(package);
562 z3950_package.session().close();
564 z3950_package.move();
566 if (z3950_package.session().is_closed())
573 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
574 mp::Package &z3950_package,
576 Z_SRW_PDU *sru_pdu_res,
577 Z_SRW_searchRetrieveRequest
580 std::string dbappend) const
583 assert(sru_pdu_res->u.response);
585 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
586 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
588 // RecordSyntax will always be XML
589 z_searchRequest->preferredRecordSyntax
590 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
592 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
593 &z_searchRequest->num_databaseNames,
594 &z_searchRequest->databaseNames))
598 if (sr_req->database)
599 db = sr_req->database;
603 if (dbappend.length())
608 z_searchRequest->num_databaseNames = 1;
609 z_searchRequest->databaseNames = (char**)
610 odr_malloc(odr_en, sizeof(char *));
611 z_searchRequest->databaseNames[0] = odr_strdup(odr_en, db.c_str());
613 if (sr_req->facetList)
615 Z_OtherInformation **oi = &z_searchRequest->additionalSearchInfo;
616 yaz_oi_set_facetlist(oi, odr_en, sr_req->facetList);
618 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
619 z_searchRequest->query = z_query;
621 int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
624 yaz_add_srw_diagnostic(odr_en,
625 &(sru_pdu_res->u.response->diagnostics),
626 &(sru_pdu_res->u.response->num_diagnostics),
632 z3950_package.request() = apdu;
634 z3950_package.move();
636 Z_GDU *z3950_gdu = z3950_package.response().get();
638 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
639 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
640 || !z3950_gdu->u.z3950->u.searchResponse
641 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
643 yaz_add_srw_diagnostic(odr_en,
644 &(sru_pdu_res->u.response->diagnostics),
645 &(sru_pdu_res->u.response->num_diagnostics),
646 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
650 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
652 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
657 Z_FacetList *fl = yaz_oi_get_facetlist(&sr->additionalSearchInfo);
659 fl = yaz_oi_get_facetlist(&sr->otherInfo);
660 sru_pdu_res->u.response->facetList = fl;
661 sru_pdu_res->u.response->numberOfRecords
662 = odr_intdup(odr_en, *sr->resultCount);
666 bool yf::SRUtoZ3950::Impl::z3950_present_request(
667 mp::Package &package,
669 Z_SRW_PDU *sru_pdu_res,
670 const Z_SRW_searchRetrieveRequest *sr_req)
673 assert(sru_pdu_res->u.response);
680 if (sr_req->maximumRecords)
681 max_recs = *sr_req->maximumRecords;
682 if (sr_req->startRecord)
683 start = *sr_req->startRecord;
685 // no need to work if nobody wants record ..
689 bool send_z3950_present = true;
691 // recordXPath unsupported.
692 if (sr_req->recordXPath)
694 send_z3950_present = false;
695 yaz_add_srw_diagnostic(odr_en,
696 &(sru_pdu_res->u.response->diagnostics),
697 &(sru_pdu_res->u.response->num_diagnostics),
698 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
701 // resultSetTTL unsupported.
702 // resultSetIdleTime in response
703 if (sr_req->resultSetTTL)
705 send_z3950_present = false;
706 yaz_add_srw_diagnostic(odr_en,
707 &(sru_pdu_res->u.response->diagnostics),
708 &(sru_pdu_res->u.response->num_diagnostics),
709 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
713 if (sr_req->sort_type != Z_SRW_sort_type_none)
715 send_z3950_present = false;
716 yaz_add_srw_diagnostic(odr_en,
717 &(sru_pdu_res->u.response->diagnostics),
718 &(sru_pdu_res->u.response->num_diagnostics),
719 YAZ_SRW_SORT_UNSUPP, 0);
722 // start record requested negative, or larger than number of records
723 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
725 send_z3950_present = false;
726 yaz_add_srw_diagnostic(odr_en,
727 &(sru_pdu_res->u.response->diagnostics),
728 &(sru_pdu_res->u.response->num_diagnostics),
729 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
732 // maximumRecords requested negative
735 send_z3950_present = false;
736 yaz_add_srw_diagnostic(odr_en,
737 &(sru_pdu_res->u.response->diagnostics),
738 &(sru_pdu_res->u.response->num_diagnostics),
739 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
743 // exit on all these above diagnostics
744 if (!send_z3950_present)
747 if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
748 max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
750 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
751 sru_res->records = (Z_SRW_record *)
752 odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
754 while (num < max_recs)
756 // now packaging the z3950 present request
757 Package z3950_package(package.session(), package.origin());
758 z3950_package.copy_filter(package);
759 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
761 assert(apdu->u.presentRequest);
763 *apdu->u.presentRequest->resultSetStartPoint = start + num;
764 *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
766 // set response packing to be same as "request" packing..
767 int record_packing = Z_SRW_recordPacking_XML;
768 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
769 record_packing = Z_SRW_recordPacking_string;
771 // RecordSyntax will always be XML
772 apdu->u.presentRequest->preferredRecordSyntax
773 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
775 // z3950'fy record schema
776 if (sr_req->recordSchema)
778 apdu->u.presentRequest->recordComposition
779 = (Z_RecordComposition *)
780 odr_malloc(odr_en, sizeof(Z_RecordComposition));
781 apdu->u.presentRequest->recordComposition->which
782 = Z_RecordComp_simple;
783 apdu->u.presentRequest->recordComposition->u.simple
784 = mp_util::build_esn_from_schema(odr_en,
786 sr_req->recordSchema);
789 // attaching Z3950 package to filter chain
790 z3950_package.request() = apdu;
792 // sending Z30.50 present request
793 z3950_package.move();
795 //check successful Z3950 present response
796 Z_GDU *z3950_gdu = z3950_package.response().get();
797 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
798 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
799 || !z3950_gdu->u.z3950->u.presentResponse)
802 yaz_add_srw_diagnostic(odr_en,
803 &(sru_pdu_res->u.response->diagnostics),
804 &(sru_pdu_res->u.response->num_diagnostics),
805 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
808 // everything fine, continuing
810 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
812 // checking non surrogate diagnostics in Z3950 present response package
813 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
817 // if anything but database or surrogate diagnostics, stop
818 if (!pr->records || pr->records->which != Z_Records_DBOSD)
822 // inserting all records
824 pr->records->u.databaseOrSurDiagnostics->num_records;
825 for (int i = 0; i < returned_recs; i++)
827 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
828 Z_NamePlusRecord *npr
829 = pr->records->u.databaseOrSurDiagnostics->records[i];
831 sru_res->records[i + num].recordPacking = record_packing;
833 if (npr->which == Z_NamePlusRecord_surrogateDiagnostic)
835 Z_DiagRec *p = npr->u.surrogateDiagnostic;
836 if (p->which == Z_DiagRec_defaultFormat)
838 Z_DefaultDiagFormat *df = p->u.defaultFormat;
839 int c = yaz_diag_bib1_to_srw(*df->condition);
841 yaz_mk_sru_surrogate(
842 odr_en, sru_res->records + i + num, position,
847 yaz_mk_sru_surrogate(
848 odr_en, sru_res->records + i + num, position,
849 YAZ_SRW_RECORD_TEMPORARILY_UNAVAILABLE, 0);
852 else if (npr->which == Z_NamePlusRecord_databaseRecord &&
853 npr->u.databaseRecord->direct_reference
854 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
857 // got XML record back
858 Z_External *r = npr->u.databaseRecord;
859 sru_res->records[i + num].recordPosition =
860 odr_intdup(odr_en, position);
861 sru_res->records[i + num].recordSchema = sr_req->recordSchema;
862 sru_res->records[i + num].recordData_buf
863 = odr_strdupn(odr_en,
864 (const char *)r->u.octet_aligned->buf,
865 r->u.octet_aligned->len);
866 sru_res->records[i + num].recordData_len
867 = r->u.octet_aligned->len;
871 // not XML or no database record at all
872 yaz_mk_sru_surrogate(
873 odr_en, sru_res->records + i + num, position,
874 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
877 num += returned_recs;
880 sru_res->num_records = num;
881 if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
882 sru_res->nextRecordPosition =
883 odr_intdup(odr_en, start + num);
887 int yf::SRUtoZ3950::Impl::z3950_build_query(
888 mp::odr &odr_en, Z_Query *z_query,
889 const Z_SRW_searchRetrieveRequest *req
892 if (!strcmp(req->queryType, "cql"))
894 Z_External *ext = (Z_External *)
895 odr_malloc(odr_en, sizeof(*ext));
896 ext->direct_reference =
897 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
898 ext->indirect_reference = 0;
900 ext->which = Z_External_CQL;
901 ext->u.cql = odr_strdup(odr_en, req->query);
903 z_query->which = Z_Query_type_104;
904 z_query->u.type_104 = ext;
908 if (!strcmp(req->queryType, "pqf"))
910 Z_RPNQuery *RPNquery;
911 YAZ_PQF_Parser pqf_parser;
913 pqf_parser = yaz_pqf_create ();
915 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query);
916 yaz_pqf_destroy(pqf_parser);
919 return YAZ_SRW_QUERY_SYNTAX_ERROR;
921 z_query->which = Z_Query_type_1;
922 z_query->u.type_1 = RPNquery;
926 return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
929 bool yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(
931 Z_SRW_searchRetrieveResponse
933 Z_Records *records) const
935 // checking non surrogate diagnostics in Z3950 present response package
937 && records->which == Z_Records_NSD
938 && records->u.nonSurrogateDiagnostic)
940 z3950_to_srw_diag(odr_en, sru_res,
941 records->u.nonSurrogateDiagnostic);
947 int yf::SRUtoZ3950::Impl::z3950_to_srw_diag(
949 Z_SRW_searchRetrieveResponse *sru_res,
950 Z_DefaultDiagFormat *ddf) const
952 int bib1_code = *ddf->condition;
953 sru_res->num_diagnostics = 1;
954 sru_res->diagnostics = (Z_SRW_diagnostic *)
955 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
956 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
957 yaz_diag_bib1_to_srw(bib1_code),
962 static mp::filter::Base* filter_creator()
964 return new mp::filter::SRUtoZ3950;
968 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_z3950 = {
979 * c-file-style: "Stroustrup"
980 * indent-tabs-mode: nil
982 * vim: shiftwidth=4 tabstop=8 expandtab